| 零磁室内环境磁场噪声的测定 |
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| 引用本文： | 张志友,李嘉璋.零磁室内环境磁场噪声的测定[J].烟台大学学报(自然科学与工程版),1989(2):37-41. |
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| 作者姓名： | 张志友 李嘉璋 |
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| 作者单位： | 烟台大学
(张志友)，北京大学
(李嘉璋)，国家地震局
(刘建本)，中国计量科学研究院电磁室
(薛寿清，乔蔚川)，中国计量科学研究院电磁室(肖良熙) |
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| 基金项目： | 本课题为山东省教委科研基金资助项目，第三世界科学院(TWAS)国际理论物理中心(ICTP)的物理实验基金资助项目 |
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| 摘 要： | 本文用国产超导量子干涉仪,即SQUID,对国家地震局地球物理所建造的零磁空间实验室(零磁室)内的环境磁场噪声进行了探测.室内磁场噪声约为(Hz)~(1/(0.89×10~(-12)T/).该结果表明:这样的零磁室可用来测量人体器官组织的弱磁信号,也是进行生物磁医学、高温超导材料学以及地震学等研究的理想测试环境。
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| 关 键 词： | 超导量子干涉仪 磁通量 零磁室 环境磁场噪声 |
The Ambient Magnetic Noise Measurements of Magnetically Shielded Room |
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| Zhang Zhiyou,Li Jiazhang,Liu Jianben.The Ambient Magnetic Noise Measurements of Magnetically Shielded Room[J].Journal of Yantai University(Natural Science and Engineering edirion),1989(2):37-41. |
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| Authors: | Zhang Zhiyou Li Jiazhang Liu Jianben |
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| Affiliation: | Zhang Zhiyou Li Jiazhang Liu Jianben
(Yantai University) (Beijing University) (Chinese National Bureau of Seismology)
Xue Shouqing Qiao Weichuan Xiao Liangxi
(National Institute of Metrology) |
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| Abstract: | The first magnetically shielded room in China has been constructed by the Chinese National Bureau of Seismology. The magnetic noise in that room was measured with Superconducting quantum interference device (SQUID) made in China. It is about 0. 89pTHz. On account of the low noise level of the room, it makes an excellent facility for the study of extremly weak magnetic fields e. g. research works in biomagnetism,biomedicine, geophysics, seismology and so on. |
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| Keywords: | Superconducting quantum interference device Magnetic flux Magnetically shielded room Ambient magnetic noise |
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